Mechanical Energy

Front

What is mechanical energy?

Back

Mechanical energy is the sum of potential energy and kinetic energy in an object. It is the energy associated with the motion and position of an object.

Front

What is kinetic energy?

Back

Kinetic energy is the energy an object possesses due to its motion. It depends on the mass of the object and the square of its velocity.

Front

What is potential energy?

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Potential energy is the stored energy in an object due to its position or state. It can be gravitational, elastic, or chemical energy.

Front

How is kinetic energy calculated?

Back

Kinetic energy (KE) is calculated using the formula: KE = 1/2 mv², where m is mass and v is velocity.

Front

What happens to kinetic energy when mass increases?

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When the mass of a moving object increases, its kinetic energy increases, provided the velocity remains constant.

Front

What happens to kinetic energy when velocity increases?

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When the velocity of an object increases, its kinetic energy increases by the square of the velocity.

Front

What is the relationship between mass and kinetic energy?

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Kinetic energy is directly proportional to mass; if mass increases, kinetic energy increases.

Front

What is the effect of friction on mechanical energy?

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Friction converts some mechanical energy into thermal energy, reducing the total mechanical energy available for motion.

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What is an example of potential energy?

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An example of potential energy is a rock held at the top of a hill; it has gravitational potential energy due to its height.

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What is an example of kinetic energy?

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An example of kinetic energy is a moving car; it has kinetic energy due to its motion.